KKalicharan.dev
Open to collaborationUS Healthcare Insurance

KalicharanNagakrishnan

Senior Associate · Gen AI & QA Engineering. Building Gen AI systems for US healthcare insurance. 15 years building automation, test data, and Gen AI products that ship.

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About

Engineer, builder, team lead.

Senior Associate at Cognizant with 15 years in software — the last five leading a team of 14 driving innovation in QA, Test Data Management, and Generative AI. I build production Gen AI tools and ship measurable wins: 80% efficiency gains on data masking, 40% testing coverage improvement, 50% query-time reductions. Award-winning IBM Call for Code 2020 Best Asia Pacific project. Based in Halifax, Canada.

Highlights
  • 15Years in software
  • 14Team size led
  • 80%Efficiency gain on data masking
  • 40%Testing coverage improvement
  • 10+Multi-table DBs synthesized
  • 50%Query-time reduction (Gen AI mining)
Stack

Tools, languages, and frameworks I reach for.

A working subset — happy to learn what your stack needs.

AI & ML
Generative AILangChainAzure OpenAIIBM WatsonScikit-learn
QA & TDM
Automation TestingSeleniumUFTRFTRobot FrameworkIBM OptimTest Data ManagementPostman API
Web & Frameworks
FlaskWeb Development
Tooling & Practices
GitJIRAAgileTeam Management
Languages
PythonJavaOracle SQLShell ScriptingVBA Macro
Experience

15 years across QA, TDM, and Gen AI.

Cognizant since 2011, leading the Gen AI charge since 2018.

  1. Senior Associate

    ·Cognizant Technology Solutions· Halifax, Canada / India
    2018 — Present

    Led a 14-person team across QA, Test Data Management, and Generative AI for US healthcare insurance clients.

    • Built Data Masking Automation Framework with IBM Optim — 80% efficiency improvement
    • Generated synthetic data for 10+ multi-table SQL databases — 40% testing coverage gain
    • Built Gen AI data mining solution (NL → SQL) — 50% query-time reduction
    • Built Gen AI KM bot + evaluation portal with LangChain + Azure OpenAI — 30% retention boost
  2. Associate

    ·Cognizant Technology Solutions· India
    2015 — 2018

    Led requirement gathering and design reviews. Planned tests for waterfall + Agile.

    • End-to-end test planning across waterfall and Agile
    • UFT-based automation for SIT and end-to-end testing
    • VBA macro tooling for test data setup
  3. Programmer Analyst

    ·Cognizant Technology Solutions· India
    2011 — 2015

    Wrote SQL across source systems, managed defects end-to-end in JIRA.

    • SQL queries across multiple source tables
    • Defect management in JIRA
    • Agile ceremonies and status reporting
Featured work

Projects that shipped — with measurable impact.

Most of these were built inside Cognizant for US healthcare insurance clients. AI-Farm is public and award-winning.

AI-Farm

IBM Call for Code 2020 — Best Asia Pacific Project

IoT + IBM Watson detecting plant diseases from live photos and optimizing farm resource usage.

IBM WatsonIoTPythonComputer Vision

Gen AI Data Mining

Natural language ? SQL across multi-table databases

Gen AI solution turning plain-English questions into SQL queries — cut query time by 50%.

PythonLangChainAzure OpenAIOracle SQL

GenCare AI — Patient Insights

1st prize, internal provider hackathon

Azure OpenAI tool generating prognosis suggestions and lifestyle recommendations from patient smartwatch data.

Azure OpenAIPythonHealthcare APIs

KM & Evaluation Portal

Gen AI knowledge management at scale

LangChain + Azure OpenAI KM bot. 30% retention boost, 25% faster onboarding, 5,000+ assessments/yr.

LangChainAzure OpenAIPythonFlask

Synthetic Data Gen Portal

ML-based synthetic data with referential integrity

Python + ML generating synthetic test data preserving referential integrity across multi-table schemas.

PythonScikit-learnOracle SQL
Credentials

Certifications.

Generative AI Fundamentals Specialization

Databricks · 2024

ISTQB Certificate in Software Testing

ISTQB · 2021

DIAT Certified Artificial Intelligence Professional

Defense Institute of Advanced Technology (DIAT), DRDO · 2013
Recognition

Awards and honors.

IBM Call for Code 2020 — Best Asia Pacific Project

AI-Farm: IoT + Watson plant disease detection.

IBM · 2020

Best Innovator Award '23

Recognized for shipping Gen AI products that improved delivery quality.

Cognizant (Account level) · 2023

Associate of the Month / Associate of the Quarter

Recognized multiple times by Cognizant's Talent Management group.

Cognizant Talent Management · Multiple
Contact

Let's build something.

Open to interesting Gen AI, QA-automation, and TDM conversations. I respond within a couple of business days.

Based in
Halifax, Canada
All messages land in my inbox and the admin panel.